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MC74HCT245A_07 Datasheet, PDF (3/9 Pages) ON Semiconductor – Octal 3−State Noninverting Bus Transceiver with LSTTL Compatible Inputs | |||
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MC74HCT245A
DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Guaranteed Limit
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Symbol
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ VIH
Parameter
Minimum HighâLevel Input
Voltage
Test Conditions
Vout = 0.1 V or VCC â 0.1 V
|Iout| v 20 mA
VCC â 55 to
V
25_C v 85_C v 125_C Unit
4.5
2.0
2.0
2.0
V
5.5
2.0
2.0
2.0
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ VIL Maximum LowâLevel Input
Voltage
Vout = 0.1 V or VCC â 0.1 V
|Iout| v 20 mA
4.5
0.8
0.8
0.8
V
5.5
0.8
0.8
0.8
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ VOH MinimumHighâLevelOutput
Voltage
Vin = VIH or VIL
|Iout| v 20 mA
4.5
4.4
4.4
4.4
V
5.5
5.4
5.4
5.4
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Vin = VIH or VIL
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ |Iout| v 6.0 mA
4.5
3.98
3.84
3.7
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ VOL Maximum LowâLevel Output
Voltage
Vin = VIH or VIL
|Iout| v 20 mA
4.5
0.1
0.1
0.1
V
5.5
0.1
0.1
0.1
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Vin = VIH or VIL
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ |Iout| v 6.0 mA
4.5
0.26
0.33
0.4
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Iin
Maximum Input Leakage Current
Vin = VCC or GND, Pins 1 or 19
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ ICC Maximum Quiescent Supply Current Vin = VCC or GND
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ (per Package)
Iout = 0 mA
5.5
± 0.1
5.5
4.0
± 1.0
40
± 1.0
mA
160
mA
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ IOZ Maximum ThreeâState
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Leakage Current
Output in HighâImpedance State 5.5
Vin = VIL or VIH
Vout = VCC or GND, I/O Pins
± 0.5
± 5.0
± 10
mA
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ DICC
Additional Quiescent Supply
Current
Vin = 2.4 V, Any One Input
⥠â55_C
25_C to 125_C
Vin = VCC or GND, Other Inputs
lout = 0 mA
5.5
2.9
2.4
mA
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ NOTE:Information on typical parametric values can be found in Chapter 2 of the ON Semiconductor HighâSpeed CMOS Data Book
(DL129/D).
AC ELECTRICAL CHARACTERISTICS (VCC = 5.0 V ± 10%, CL = 50 pF, Input tr = tf = 6.0 ns)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Guaranteed Limit
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Symbol
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPLH,
tPHL
Parameter
Maximum Propagation Delay, A to B or B to A
(Figures 2 and 4)
â 55 to
25_C
22
v 85_C v 125_C Unit
28
33
ns
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPLZ,
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPHZ
Maximum Propagation Delay, Direction or Output Enable to A or B
(Figures 3 and 5)
30
36
42
ns
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPZL,
tPZH
Maximum Propagation Delay, Output Enable to A or 8
(Figures 3 and 5)
30
36
42
ns
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tTLH,
tTHL
Maximum Output Transition Time. any Output
(Figures 2 and 4)
12
15
18
ns
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Cin Maximum Input Capacitance (Pin 1 or 19)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Cout Maximum ThreeâState I/O Capacitance, (I/O in HighâImpedance State)
10
10
10
pF
15
15
15
pF
NOTE: For propagation delays with loads other than 50 pF, and information on typical parametric values, see Chapter 2 of the ON
Semiconductor HighâSpeed CMOS Data Book (DL129/D).
Typical @ 25°C, VCC = 5.0 V
CPD Power Dissipation Capacitance (Per Enabled Output)*
97
pF
* Used to determine the noâload dynamic power consumption: PD = CPD VCC2f + ICC VCC. For load considerations, see Chapter 2 of the
ON Semiconductor HighâSpeed CMOS Data Book (DL129/D).
http://onsemi.com
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